/Engine/Source/Editor/UnrealEd/Public/Layers/LayersSubsystem.h
Disassociates actors from the layer system, generally used before deleting the Actors
virtual bool DisassociateActorsFromLayers ( const [TArray](API\Runtime\Core\Containers\TArray)< [AActor](API\Runtime\Engine\GameFramework\AActor) * > & Actors )